Goodwill and Intangible Assets (Details 3)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Remaining weighted average amortization period
Total weighted average amortization period	19 years 8 months 12 days	23 years 1 month 6 days
Land rights
Remaining weighted average amortization period
Total weighted average amortization period	46 years 10 months 24 days	47 years 10 months 24 days
Patents
Remaining weighted average amortization period
Total weighted average amortization period	2 years 9 months 18 days	3 years
Technical know-how, customer list, and other
Remaining weighted average amortization period
Total weighted average amortization period	15 years 4 months 24 days	14 years 8 months 12 days